1. The main control parameters of smoke discharge are the working temperature, air volume, full pressure, efficiency, noise, motor power, speed and axis power.
2. Tobacco ventilations should be able to run normally for a long time under the condition that the medium temperature is not higher than 85 ° C.
3. The smoke exhaust ventilator should be guaranteed that when the temperature of the conveyor medium can work continuously for 30 minutes when the temperature is 280 ° C, it can still run normally when the medium temperature is cooled to the ambient temperature.
4. Under the rated speed and in the working area, the actual pressure curve and the curve given in the instructions of the ventilator shall meet the following regulations:
a) Under the specified flow of axial flow tobacco ventilator, the corresponding pressure deviation of the pressure value is ± 5%.
b) Under the prescribed flow of centrifugal fans, the corresponding pressure deviation of the corresponding pressure value is ± 5%.
5. Tobacco ventilation ventilator at the given noise of the A sound level under the conditions of the working conditions in the manual shall comply with the regulations of JB/T8690-1998.
6. Tobacco exhaust fan can adopt ordinary steel centrifugal ventilation or special tobacco axis streaming ventilator.The specifications of smoke exhaust fans shall be in accordance with the provisions of the "Fire Fire Standards for High -level Civil Building Design".The minimum air volume of smoke exhaust fan is 7200m/h, and the larger air volume should not exceed 60,000m/h (referring to a larger air volume of a smoke duct).
7. The air volume of smoke exhaust fans should increase the wealth of not less than 10%to 20%according to the required air volume value.
8. The wind pressure value of the smoke -proof pressure ventilator should be calculated according to the most unfavorable circulation of the smoke discharge system, and the remaining voltage value of the internal smoke -proof staircase room should be 40-50Pa.The remaining voltage values ??of the front room, the front room, the front room of the fire elevator, and the refuge layer are 25-30Pa.
9. Fire fire exhaust fan should meet the current standard JB/T10281-2001 "Technical Conditions for Fire Fighting Tobacco Ventures".
10. The fan of the smoke exhaust system should be set alone.The position of the smoke exhaust fan should be in the same or upper layer of the smoke drainage area.
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